1625165632 has 28 divisors (see below), whose sum is σ = 3261184740. Its totient is φ = 803449856.

The previous prime is 1625165611. The next prime is 1625165681. The reversal of 1625165632 is 2365615261.

It can be written as a sum of positive squares in 2 ways, for example, as 954562816 + 670602816 = 30896^2 + 25896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1625165591 and 1625165600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136963 + ... + 148354.

Almost surely, 2^1625165632 is an apocalyptic number.

It is an amenable number.

1625165632 is an abundant number, since it is smaller than the sum of its proper divisors (1636019108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1625165632 is an equidigital number, since it uses as much as digits as its factorization.

1625165632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285418 (or 285408 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 1625165632 is about 40313.3431012612. The cubic root of 1625165632 is about 1175.7072867358.

The spelling of 1625165632 in words is "one billion, six hundred twenty-five million, one hundred sixty-five thousand, six hundred thirty-two".